Sonic Synth is very capable FM Synthesizer app with 3 oscillators. Every oscillator is independent and can generate 4 wave forms. The app works with 44100 Hz sample rate so the sound quality is great.
Core MIDI - support for MIDI keyboards via USB
The touch keyboard is also very responsive and dynamic - feels like a real instrument. Keys are big enough.
The last wave form is our secret algorithm for string sound also generated by the oscillators.
Variety of sounds can be created and even changed real time while you are playing using the setting of the 3 oscillators of the synthesizer.
Sonic Synth main features: - 3 oscillators - 4 wave form types for every oscillator - volume, modulation, tone and detune for every oscillator - envelope filters (attack sustain release) - multitouch - fast and usable piano keyboard
You can now use your phone or tablet as a recording instrument.
support for MIDI Keyboards and fixes
Ratings and Reviews
Currently doesn't work on new iDevices
Newer Apple iDevices now only have 48kHz speaker sample rates so this app doesn't work on new devices like my iPhone 6. Although the description stipulates 44kHz it generalizes the support of all devices with no specificity. Check newer devices to insure compatibility. I'm rating it 2-stars for loose description.
With Family Sharing set up, up to six family members can use this app.